BOSON MAKE BOSOFLEX GEAR COUPLINGS

The gear couplings are flexible in nature and accommodate the misalignment of connecting shafts, while compensating both on in built misalignment and installation misalignment for driven and driving equipments. These gear couplings are flexible, because teeth on hubs and teeth inside cover are suspended in nature so that they can compensate the misalignment. In order to avoid vibration, produced by rotating Mass, the gear teeth need to have a proper radial clearance at time of lower speed transmission of torque. As speed of torque gets higher, this Gear Teeth center on their working flank, which provides distribution of load on all teeth that are equal.

Why Us ?

Boson Gear Couplings are manufactured with Forged Steel and Heat Treated and Machined. The use of steel for gear couples are Nitrolloy N/ 135, AISI 4140, AISI 1045 and these are tempered and hardened before going to machinery. In some of GEAR Couplings, machine gear teeth are surface hardened by thermo chemical treatment or thermal in order to increase load capacity. For Gear Coupling nitroxidation, gas nitridiing and tempering in induction oven is done. At the last stage anti oxidant and anti corrosive treatment is also done.

Normally in our Standard Gear Coupling made from AISI 1045, unless otherwise specified, nitroxidation treatment for limiting surface corrosion. Besides this treatment can improve wear resistance, surface hardness and increase service under life under rotational speed and high misalignment. The Gear Coupling is selected and is based on operating data like horse power , Shaft Dia for both Driven and Driving Side, Rotation Per Minute and Type of Equipment.

We recommend to perform a dynamic balancing of the rotating masses- class and requirements to be specified (See AGMA 9000 C90)- in case of the high rotation speed or when the equipments having supports sensitive to the mass imbalance are involved. A single engagement of the gear teeth (half-coupling) can compensate both angular and axial misalignments, two engagements of the gear teeth (complete coupling) are required to compensate also the parallel misalignments.

Please remember that angular, parallel, combined and axial alignments, maximum speed rotation and transmitted torques must be in accordance with the requirements of every kind of coupling, to avoid excessive or early wear. Maintenance and lubrication have to be careful and precise.

The Gear couplings are properly packaged as per their dimensions, weight, required type of transport and storage. For prevention of oxidation, the interface surfaces or the surface which have been submitted to assembly the operations are protected by a wax film of TECTYL 506 EH. The raw or semifinished wide surfaces of spacer tubes are painted, after sandblasting, by one primer acrylic coat and two final epozy coats, this kind of painting can resist temperatures up to 100-120^° C

Infact, we allow several kind of coating as per customer requirements. The torque a gear coupling to the total misalignment between the shafts when connected. The gear couplings must be selected as per the operational data (speed and load), the nominal and max load capacities, the application, the static, and dynamic misalignmenets and the max admitted bore.

Boson Tyre Couplings are highly expandable, lubrication free coupling that stands large quantity of misalignment in planes as well as presenting simple fitting and examination without upsetting the drive.

• Simple time cutback fitting – Machine and motor remains undisturbed while tyre is changed.
• There is large misalignment potential up to 6mm parallel and 8 mm axial with 4o angular.
• There is no problem in reversing drives since internal load carrying cords have wound in both ways.
• Tyres are available in FRAS (Fire Resistant Anti Static) construction and standard in nature.
• In order to aid maintenance simple visual inspection is done.
• There are pilot bore flanks and taper lock in nature.
• It is also lubrication free in nature.
• There are flywheel-fixing variants that are available along with pump scanner.

Boson Ressiliant Couplings is an amalgamation of the benefits of high power rating of gear coupling and flexibility of nylon or Rubber coupling with elevated evaluation. These are simple to maintain and install. The flexible grids are smoothly replacable with no disturbing connected drives. Boson Resellient Couplings are availabe in a wide range of sizes covering from 0.006 to 3.505 RMP/ HP with bores up to 265 mm.

Features:

The features of Boson Resilient Couplings are as follows:

• Being all metal no chances for fast wearing.
• Dynamic balancing not reqd as all the parts are properly machined.
• Torsional flexibility is obvious. Gradual torsional flexibility offer protection for impact loadf ,shock load and vibration.
• As the grid springs are properly heat treated it may receive impact or shock loads without loosing of energy.
• During the transmission of full torque it also dampens the vibration even.
• At the time of overloads spring broken there by saving damage of main shaft and driven equipment.
• When amount of misalignment is more connected drives are protected by virtue of breaking of Grid or Teeth.

AVAILABLE IN TWO VARIANTS :

Horizontally Split Covers : Easy replacement and maintenance of grid.Ideal for tight space.

Vertically Split Sovers : Ideal for higher RPM.

SIMPLE AND EASY MAINTENANCE :

Very less components advantageous for easy maintenance.

Vertically Split Sovers

CONSTRUCTION:

Boson High torque Resilient Coupling having a grid spring which connects two hubs ,driving and driven. The spring is specially designed considering the requirement of the driving and driven equipments.

The Grooves on the hubs are little flared to allow the grid members to play during the torque transmitting.

The basic principle of design in Resilient Coupling, makes it capable to accommodate axial, parallel and angular misalignment between a driving and driven equipments.

BOSON RESILIENT COUPLINGS

Benefits:

1. Protection against misalignment : Parallel Axial Angular

2. Protection against Shock loads, Vibration & Thrust loads :

 

 

For little misalignment of two shafts, pin bush coupling is used.

Pin Bush Coupling is engineered from protected type of flange coupling. This type of coupling has pins which work as coupling bolts. Over the pins rubber or leather bushes are used. The pins are tightened by nuts with one of the flange and on the other flange kept loose. The internal construction of two hubs of the coupling has dissimilarity in its nature. This coupling is normally used where small parallel misalignment, axial or angular misalignment are found in the connecting shafts. In this coupling rubber bushes absorb vibration and shocks at the time of operation. This type of coupling is used in machines and couple electric motors.

Boson Pin Bush Couplings guarantees transmission of high speed in such a way, that couplings have extraordinary shock absorption ability due to its manufacturing pattern. The rubber bushes, unaltered by water, atmospheric condition and dust allows drive in either way and requires no adjustment and lubrication after fixing.

 

 

Bosoflex Jaw Shaft couplings are torsionaly flexible shaft couplings, It operates with two hubs having concave jaws, transmitting the power by meshing with the help of elastomer involuted spider ring.

The spider couplings are used for a reliable, smooth power transmission without torsional vibration to protect the connected machines.

The Elastomer spider ring is ductile and flexible in nature and for this reason it can compensate angular and parallel displacement of the shafts and at the same time it can absorb the longitudinal movements of the shafts.

The teeth of the elastomer material are involuted and crowned to avoid edge pressure on the tooth flanks and unwanted axial thrust. The elastomer gear rings are made from newly developed Simirit-Polyurethane of various values of shore hardness, which has important advantages compare to standard polyurethanes. It is wear resistant non-ageing, having good resistance against hydrolysis, oil and ozone. It is also non-abrasive, has a good damping effect. It can withstand temperatures from -400°C to +1000°C.

Bosoflex Jaw Shaft couplings can be used for horizontal, vertical, reversing movements and intermittent service.